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Old 06-26-2018, 06:38 AM   #6
Norm Peterson
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Drives: 08 Mustang GT, 19 WRX
Join Date: Jul 2012
Location: Eastern Time Zone
Posts: 6,990
Quote:
Originally Posted by hzycamaro View Post
My dealer would charge me $200 for removing rotor splash shield and putting on tall deflector. I ended up doing it myself and left them on all the time. I think it's really necessary to remove the splash shield behind the rotor as it completely blocks the air to cool the rotor.
Where you want the air to mostly go is into the rotor so it flows between the vanes and cools both sides of the rotor. You'd want the splash shield to have an opening about where the ones in splash shields designed to accept a cooling duct have theirs, or possibly an abbreviated shield that retains metal in places to shield things like tierod ends from brake heat.


Quote:
Someone posted a thread saying he ran into soft brake after only one session with the splash shield on. I don't remember if that was his first time on track, though
Sounds more like a fluid issue or possibly a first-timer using the brakes more like he does on the street.


Norm
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'08 GT coupe 5M (the occasional track toy)
'19 WRX 6M (the family sedan . . . seriously)
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